Add hover/tooltip on access icons to explain what they are

[Col-E]

When class/field/member modifier groups are displayed, its a stack of colored shapes.

It would be useful to have on-hover capabilities for these groups to complain the flags enabled in each group.

See AccessFlags for the list of all flags.

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It would be useful to start by looking here: UiUtil

• public static Node createClassGraphic(int access)
• public static Node createFieldGraphic(int access)
• public static Node createMethodGraphic(int access)